Gopro Hero4 Silver - internal vs. external microphone - YouTube
GoPro 3.5mm Mic Adapter for HERO3 / HERO3+ / HERO4 - Filters Exchange Photography Accessories
3.5mm External Microphone Clip On Mic + Adapter Cable Kit for GoPro Hero 4 3+ 3 | eBay
Amazon.com: GoPro HERO4 Camcorder External Microphone Vidpro XM-L Wired Lavalier microphone - Designed for use with Gopro Hero4, Hero3+, Hero3 and Hero2 cameras : Musical Instruments
2 In 1 Waterproof Protective Housing Case Diving Box + External Mini Stereo Mic Microphone With Cable For Gopro Hero 4 / 3+ / 3 - Sports & Action Video Cameras Accessories - AliExpress
Amazon.com: Hero 4 Microphone Compatible with GoPro Hero 4 Silver Black White Edition, Hero 3, Canon, Nikon Camcorder DSLR Camera- External Lavalier Lapel Mic : Electronics
Waterproof Microphone for HERO4 Black & Silver | GoPro External Microphones
My GoPro Hero 4 doesn't detect an external microphone : r/gopro
Saramonic G-Mic Stereo Ball Gopro Microphone with Foam & Furry Windscreens for GoPro HERO3, HERO3+ and HERO4